Rocky Balboa

robot.js

var Robot = function(robot) {
	this.rotate = 360;
	this.dist = 0;
	this.lastAngle = 0;
};

Robot.prototype.onIdle = function(ev) {
	var robot = ev.robot;
	robot.turn(this.rotate);
	this.lastAngle = this.rotate;
};

Robot.prototype.onScannedRobot = function(ev) {
	var robot = ev.robot,
      scannedRobot = ev.scannedRobot,
      turnAngle = this.getAngle(robot.position, scannedRobot.position);
  if (robot.id == scannedRobot.parentId || robot.parentId == scannedRobot.id) {
  	return;
  }
  if (turnAngle < 0){
		turnAngle += 360;
	}else if(turnAngle > 180){
		turnAngle -= 360;
	}

	this.rotate = robot.cannonAbsoluteAngle - turnAngle
	this.dist = this.getDist(robot.position, ev.scannedRobot.position);

  robot.fire();
  robot.clone();
	robot.ahead(this.dist/2);
};

Robot.prototype.onRobotCollision = function(ev) {
    var robot = ev.robot;
    robot.back(5);
};

Robot.prototype.getAngle = function(a,b){
	var tx = b.x - a.x,
		ty = b.y - a.y,
		rad = Math.atan2(ty,tx),
		angle = (rad/Math.PI * 180);
	return angle;
};

Robot.prototype.getDist = function(a,b){
	return Math.sqrt((b.x - a.x) *(b.x - a.x) + (b.y - a.y) * (b.y - a.y));
};